{"product_id":"renthal-491-415-40p-or-ultralight-rear-sprocket-40t-ktm-50-sx-2014-2025","title":"Renthal 491--415-40P-OR Ultralight Rear Sprocket 40T KTM 50 SX 2014–2025","description":"\u003ch2\u003e✨Renthal 491--415-40P-OR Ultralight Rear Sprocket 40T KTM 50 SX 2014–2025\u003c\/h2\u003e\n\u003cp\u003eThe Ultralight 40-tooth rear sprocket is engineered to maximize acceleration and power delivery on mini and electric motocross bikes. CNC-machined from specially enhanced 7075-T6 aluminum, this Renthal Ultralight rear sprocket delivers exceptional strength while being approximately 33% lighter than steel, reducing unsprung and rotating mass for improved throttle response and handling.\u003c\/p\u003e\n\u003cp\u003eDesigned for race and performance-focused riding, the Renthal Ultralight rear sprocket features a computer-aided ultra-light design and a precision-machined tooth profile that allows the chain to roll smoothly on and off the sprocket. This reduces friction, noise, and wear while improving drivetrain efficiency and usable power at the rear wheel. The anodized orange finish provides excellent corrosion resistance and a factory race-inspired appearance.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCNC-machined aluminum construction for precise fit and strength\u003c\/li\u003e\n\u003cli\u003eHigh-strength, specially enhanced 7075-T6 aluminum alloy\u003c\/li\u003e\n\u003cli\u003eApproximately 33% lighter than comparable steel sprockets\u003c\/li\u003e\n\u003cli\u003eUltra-light design reduces unsprung and rotating mass\u003c\/li\u003e\n\u003cli\u003eOptimized tooth profile for smoother chain engagement, less noise, and longer wear\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eVehicle Fitment\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e2024 Gas Gas MC-E 3\u003c\/li\u003e\n\u003cli\u003e2021–2024 Gas Gas MC 50\u003c\/li\u003e\n\u003cli\u003e2021–2023, 2025 Gas Gas MC-E 5\u003c\/li\u003e\n\u003cli\u003e2024 Husqvarna EE 3\u003c\/li\u003e\n\u003cli\u003e2021–2022, 2024 Husqvarna EE 5\u003c\/li\u003e\n\u003cli\u003e2018–2024 Husqvarna TC50\u003c\/li\u003e\n\u003cli\u003e2018–2019 Husqvarna TC 50 Mini\u003c\/li\u003e\n\u003cli\u003e2024 KTM SX-E 3\u003c\/li\u003e\n\u003cli\u003e2021–2022, 2024 KTM SX-E 5\u003c\/li\u003e\n\u003cli\u003e2014–2025 KTM 50 SX\u003c\/li\u003e\n\u003cli\u003e2014–2020 KTM 50 SX Mini\u003c\/li\u003e\n\u003cli\u003e2014–2016 KTM 50 SXS\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat riding advantage does a 40-tooth rear sprocket provide?\u003c\/strong\u003e\u003cbr\u003eA 40-tooth sprocket increases rear-wheel torque and acceleration, making it ideal for tighter tracks, younger riders, or conditions where strong low-end power is preferred.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs this sprocket suitable for race use?\u003c\/strong\u003e\u003cbr\u003eYes, Renthal Ultralight sprockets are widely used in competitive motocross and electric mini racing due to their lightweight design and durability.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow does aluminum compare to steel for longevity?\u003c\/strong\u003e\u003cbr\u003eThe 7075-T6 aluminum used by Renthal offers excellent strength-to-weight ratio and wear resistance while significantly reducing rotating mass compared to steel.\u003c\/p\u003e\n\u003cp\u003eThis Ultralight rear sprocket is a proven upgrade for riders and mechanics looking to improve acceleration, reduce drivetrain weight, and maintain consistent performance on mini and electric motocross bikes.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMoto-House MX\u003c\/strong\u003e – \u003cstrong\u003eChoice of Champions\u003c\/strong\u003e – is located in Clermont\/Montverde, FL. The best motocross shop in Central Florida.\u003c\/p\u003e","brand":"RENTHAL","offers":[{"title":"Default Title","offer_id":42622495916115,"sku":"491--415-40P-OR","price":94.15,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1754\/5421\/files\/491-415-40p-or-341470.jpg?v=1744692187","url":"https:\/\/motohousemx.com\/products\/renthal-491-415-40p-or-ultralight-rear-sprocket-40t-ktm-50-sx-2014-2025","provider":"Moto-House MX","version":"1.0","type":"link"}